7x- 3(x- 6) = 30
A. X=3
B.x=9
C.x=6
D.x=12

7x- 3(x- 6) = 30A. X=3B.x=9C.x=6D.x=12

Answers

Answer 1

Answer:

x=3

Step-by-step explanation:

1. Simplify the expression

7x-\left(3\cdot\left(x-6\right)\right)=30

Solve by distributing:

7x-\left(3x+3\cdot-6\right)=30

Simplify the arithmetic:

7x-\left(3x-18\right)=30

Expand the parentheses:

7x-3x+18=30

Simplify the arithmetic:

4x+18=30

Answer 2
A. x=3 I know this bc I took the test

Related Questions

Which is the graph of y=3/4x-3?

Answers

Answer:

Graph A

Step-by-step explanation:

The y-intercept is -3, which is the y-value when the graph hits the y-axis.

Graph A and B both hit the y-intercept of -3.

The slope is 3/4, which means the line rises 3 units as it runs 4.

This time, only Graph A has the correct slope.

The correct answer is [tex]\boxed{\text{Graph A}}[/tex]

-Chetan K

Answer:

Graph A

Step-by-step explanation:

The formula is in the form y=mx+c, where m is the gradient and m is the y-intercept, this means that the y-intercept is (0,-3) which rules out Graph B.

To find the gradient we use [tex]\frac{rise}{run}[/tex], this means that the vertical value has to be 3 and the horizontal distance 4 and this rules out Graph C as its gradient is 3/2. That means that graph A matches the equation the best.

Can anyone answer these?

Answers

Answer:

4) 3 for the numerator. 9 for the denominator

5) 6 for the first blank square and 48 for the second blank.

6) 2 for the denominator. 6 for the numerator. 30 for the second numerator.

Step-by-step explanation:

sorry but those are the only ones i know

Hope this helps!

Help !! its A math question If an equation is written in standard form, which method can you ALWAYS use to solve the quadratic equation?


Factoring


Isolate the Square


Quadratic Formula

Answers

Quadratic Formula is the answer to your problem

The method can you ALWAYS use to solve the quadratic equation will be the Quadratic Formula method. Then the correct option is C.

What is a quadratic equation?

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2.

A math question If an equation is written in standard form.

The factorization method sometimes gets difficult from the big number and in the case of the complex root. So, in that case, we use other methods.

In the Isolate the Square, we can find the roots of the equation. But the formula is also derived by this method. So, we do not even prefer this, method.

In this Quadratic Formula method, the formula is derived from the above method which is to Isolate the Square. Then this can be used always.

The method can you ALWAYS use to solve the quadratic equation will be the Quadratic Formula method. Then the correct option is C.

More about the quadratic equation link is given below.

https://brainly.com/question/2263981

#SPJ6


i need help please thanks

Answers

Answer:

4=123°

4=8(corresponding angles,a//b)

123°=7z+11

123-11=7z

112=7z

112/7=7z/7

16=z

find the surface area of a cylinder with a radius of 5 and a height of 8. use terms of pi

Answers

Answer:

the answer for your question is 80pi

Which ordered pair is a solution of y = x – 4?

(3, –7)
(3, 7)
(–3, 7)
(–3, –7)

Answers

Y=x-4

From this we plug in the answer to find the y value!

For example y=3-4=-1 A.) would be incorrect!

Y=3-4=-1 B.) would be incorrect!

C.) y= -3-4=-7 while it’s SUPPOSE to be 7.

D.) y= -3-4=-7 and y value is -7


Correct answer: D!


Please like and brainiest


Booker's father sells computer software and
earns a 4.25% commission on every
software package he sells. How much
commission would he earn on a software
package that sold for $15,725? Round to the
nearest cent.

Answers

Answer:

The commission is $668

Step-by-step explanation:

Two less than the product of 9 and a number is equal to 4.

Answers

Answer:

See, that doesn't make sense.

First of all, 4 is the only number equal to 4. Sp, it'd be 9+4 = 13

Then I'm assuming you're also subtracting 4 from 13, so the answer would be 9.

Hope this helped, have a nice day.

What is the greatest common factor of 36, 18, and 6?

Answers

Answer:

GCF = 6

Step-by-step explanation:

6 is the greatest common factor of these three terms.  

Answer:

69

Step-by-step explanation:

The common factor is 69 because they all add up to this sacred number

solve for x. Round to the nearest tenth,if necessary

Answers

Answer:

x = 83.7 units

Step-by-step explanation:

given adjacent: 56, given angle: 48°, asked to find hypotenuse, x?

Using cosine rule:

→ adjacent/hypotenuse = cos(∅)

→ 56/hypotenuse = cos(48)

→ hypotenuse = 56/cos(48)

→ hypotenuse = 83.7 units

Answer:

83.7

Step-by-step explanation:

We can solve this using SOHCAHTOA:

RQ is adjacent to angle Q and x is the hypotenuse, so we must use the cosine function.

[tex]cosQ = \frac{RQ}{SQ}\\ cos(48) = \frac{56}{x}\\ x = \frac{56}{cos(48)}\\ x = 83.7[/tex]

Use substitution to compose y=6u^2 and u=5x−1. Enter your answer as an equation, and simplify your answer as much as possible.

Answers

Answer:

  y = 150x^2 -60x +6

Step-by-step explanation:

Do what the problem statement tells you: substitute for u.

  y = 6u^2

  y = 6(5x -1)^2 . . . . . . . . . . substitute 5x-1 for u

  y = 6(25x^2 -10x +1) . . . . expand the square

  y = 150x^2 -60x +6 . . . use the distributive property

HELP PLEASE!!! CORRECT ANSWER GETS BRAINLIEST

Answers

Angle: egf
Angle: bgc
The two middle ones

What is the value of
3^2/3^4?

Answers

Answer:

that's 3 -² which is -9 ......

3^2/3^4

3^2 = 9

3 x 3 = 9

3 x 3 x 3 x 3

9 x 9 = 81

3 x 3 = 9 x 3 = 27 x 3 = 81

3^4 = 81

9/81 = 9

The answer is 9.

Let me know if this is the correct answer. :)

The Spinning Square Game is a game at the Kid Zone. The game
consists of spinning the square spinner. If a player takes a spin and the
spinner lands on B, the player wins a prize. If the spinner lands on A,
the player does not receive a prize.
A
Y.
B
6. Predict each probability.
a. P(A) =
b. P(B) =

Answers

Answer:

im thinking its what your heart desiers

Step-by-step explanation:

A recipe uses 5 cups of water for
every 3 cups of flour?

Answers

Answer:

There's no context for a conclusion.

Step-by-step explanation:

Comment when you've edited the question.

can someone step by step explain the answer please

Answers

Answer: z = [tex]\sqrt{10}[/tex]

Step-by-step explanation:

To find z, you must set up a proportion to solve.

To find the altitude of a special right triangle, the formula is:

[tex]\frac{a}{x} =\frac{x}{b}[/tex]

You can use 5 as a and 2 as b to complete the proportion:

[tex]\frac{5}{z} =\frac{z}{2}[/tex]

Next, to solve:

Step 1: Cross-multiply.

[tex]\frac{5}{z} =\frac{z}{2}[/tex]

(5)*(2) = z*z

10 = z²

Step 2: Take square root.

10 = z²

√10 = z

I hope this helps!

The probability of winning a certain game is 0.5. If at least 70 percent of the games in a series of games are won, the player wins a prize. If the possible choices for n are n

Answers

The equation that allows determining the probability that the player wins the prize after n games is [tex]0.35^n[/tex] = Probability. The player should choose n = 10.

The simple definition of probability is the likelihood that an individual event will occur. It can be discussed the probabilities of distant outcomes, or how probable they are, whenever we're skeptical of how an occurrence will turn out. Statistics refers to the study of events subject to probability.

First, solve the following equation to find the likelihood of the player winning the prize after n games given that the probability of winning a specific game is 0.5 and that the player wins a prize if at least 70[tex]\%[/tex] of the games in a series are won.

[tex]Probability = 0.5^n \times 0.70[/tex]

[tex]Probability = 0.35^n[/tex]

It is evident here that the larger the value of n, the lesser the chances to win.

For example, if there were five games played, the equation would be as follows:

[tex]0.35^5 = 0.005[/tex]

So. the value of n chosen by the player should be 10.

Learn more about Probability here:

#SPJ4

The complete question is as follows:

The probability of winning a certain game is 0.5. If at least 70 percent of the games in a series of n games are won, the player wins a prize. If the possible choices for n are n = 10, n = 20, and n = 100.

Which value of n should the player choose in order to maximize the probability of winning a prize?

I need this asap. Find the area of the following quadrilateral.

Answers

Answer:56

Step-by-step explanation:

i got it correct on my test

Which expression is equivalent to (StartFraction 4 Superscript five-fourths Baseline time 4 Superscript one-fourth Baseline Over 4 Superscript one-half baseline EndFraction) Superscript one-half?.

Answers

The expression is equivalent to 4 Superscript five-fourths Baseline time 4 Superscript one-fourth Baseline Over 4 Superscript one-half baseline is,

[tex]x=2[/tex]

What is equivalent expression?

Equivalent expression are the expression whose result is equal to the original expression, but the way of representation is different.

Given information-

The expression given in the problem is,

[tex]\left((4^{\dfrac{5}{4}}\times4^{\dfrac{1}{4}}\div 4^{\dfrac{1}{2}} \right)^{\frac{1}{2}}[/tex]

Let the result of the given expression is x. Rewrite the given expression as,

[tex]x=\left(\dfrac{4^{\dfrac{5}{4}}\times4^{\dfrac{1}{4}}}{4^{\dfrac{1}{2}}} \right)^{\frac{1}{2}}[/tex]

When the two number is multiplies with the same base, the powers of the number is added in result. Thus,

[tex]x=\left(\dfrac{4^{(\dfrac{5}{4}+\dfrac{1}{4})}}{4^{\dfrac{1}{2}}} \right)^{\frac{1}{2}}\\x=\left(\dfrac{4^{(\dfrac{3}{2})}}{4^{\dfrac{1}{2}}} \right)^{\frac{1}{2}}[/tex]

When the two number is divided with the same base, the powers of the number is subtracted in result. Thus,

[tex]x=\left(4^{\dfrac{3}{2}-\dfrac{1}{2}} \right)^{\frac{1}{2}}[/tex]

[tex]x=\left(4^1} \right)^{\frac{1}{2}}\\x=\left(4} \right)^{\frac{1}{2}}\\x=(2^2)^{\dfrac{1}{2}} \\x=2[/tex]

Thus the expression is equivalent to 4 Superscript five-fourths Baseline time 4 Superscript one-fourth Baseline Over 4 Superscript one-half baseline is,

[tex]x=2[/tex]

Learn more about the equivalent expression here;

https://brainly.com/question/2972832

Answer:

C = 2 on edge

Step-by-step explanation:

Your teacher is giving you a test worth 100 points containing 40 questions. There are two-point questions (x) and four-point questions (y). How many of each type of question are on the test?

Answers

Answer:

There is 30 2 pt questions and 10 4 pt questions

Step-by-step explanation:

x  is number of two-point questions

y is number of four-point questions

There is a total of 100 points.

There is a total of 40 questions.

Now, we solve by substitution

Plug 30 back in to solve for y


Find an expression for y in terms of w.

Answers

Answer:

x 6 8 11 13 18

y 15 17 20

Step-by-step explanation:

use your equations to complete the table

Answer:

y = w(7x-12)/(6-21w)

Step-by-step explanation:

See the attached image.  I was expecting a more elegant solution, so please look it over carefully.  Perhaps there is a way to simplify it, but I don't see an easy method.

Q2 There are 50 boys and 75 girls in a school. Find the ratio of boys to girls and express the following in their simplest form.

Answers

Answer:

50/75

simplest  form: 2/3

Step-by-step explanation:

Eleven more than 5 times a number is 31. What is the number?

Answers

Answer:

The number is 4.

Step-by-step explanation:

Let the number be x,

11 + 5x = 31

or, 5x = 31 - 11

or, 5x = 20

or, x = 20/5

so, x = 4

help me with proving lines parallel please

Answers

Answer:

True. A , B are parallel lines.

Step-by-step explanation:

3 and 6 are co interior angles. If co interior angles are congruent, then the line are parallel

Draw a model to help solve 5/6 + 1/4. Write your anserw as a mixed number

Answers

Answer:

Step-by-step explanation:

The diagram shows a cubiod of dimensions 10cm×8cm×5cm.Work out the total surface area of the cubiod.

Answers

Answer:

340cm²

Step-by-step explanation:

u multipley the values by 2

mZQPS = 88
mZRPS = 5x + 34°
mZQPR = 8x + 15 °
Find mZRPS:

Answers

Answer:

49

Step-by-step explanation:

First, you need to solve for x.

88 = 5x + 34 + 8x 15

88 = 13x + 49

88 - 49 = 13x

39 = 13x

39/13 = x

3 = x

Now substitute 3 in place of x to find rps

rps = 5x+34

rps = 5*3 + 34

rps = 15 + 34

rps = 49

find the unknown sizes of an angles of the following polygons.​

Answers

Answer:

A is an irregular pentagon - total angle is 540. So x is 100

(540 - 440=100)

B. 3a + 345 = 540

- 345 both sides

3a=195

÷3

a = 65

2a = 130 (65x2)

C. X = 120 (angles on straight lines adds to 180)

3y + 300 = 540

- 300

3y = 240

÷3

Y= 80

x 2

2Y = 160

Hope this helps!

PLS HELP!!!!!!!!
4 4/12 - 2 11/12

A. 2 5/12

B. 2 7/12

C. 1 5/12

D. 1 7/12

Answers

Answer:

2 7/12 B

Step-by-step explanation:

I need help with my math work

Answers

Answer:

27

Step-by-step explanation:

162/30=5.4

5.4*5=27

Answer:

the answer is 27

Step-by-step explanation:

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